Basic size of mm

d	20
D	52
B	15

The basic rated load is kN

trends C	18.2
static state Co	9

Fatigue load limit Pu	0.38

Rated rotation speed is r/min

Refer to the speed	30000
limit speed	19000

Mass kg	0.14
model	6304ETN9

Dimensions are mm

d	20
d1 ～	30.2
D1 ～	42.6
D2 ～	-
r1,2 min	1.1

Shoulder gear and chamfer size mm

da min	27
Da max	45
ra max	1

Calculation coefficient

kr	0.03
fo	12